Bearing lubrication



G.' W. HOYT.

BEARING LUBRICATION. APPLICATION FILED MAR. 17| 19.20.

Pawnahniar. '15,` 1921.

l 'Geo holes 22, which are Application led iareh 17,

ing iny improved bea-ring lubrication; and

Fig. a runsverse section on the line 22 of Fi" The si, lucture is supporiecl 1oy a stationery spindle 10, having the usual screw-tlxreedecl supporing end 11, and mouneel upon'this spinclle'is ieuliuo 12 provided with the usuel clrii pulley'lund' its forward eno. having en out'curue lsnge to which is* bolted u spieler 14 lcarrying; the usuel fan.

ol s 5.

'rhin he 'hubl and between it and the v Y 'Helle 10 is bushing 16, which r'its closely v nin the hub 12 and isixecl thereto es by i locking ring 17 surrounding the hub in'` e `groove enel having an inwardly projecting vinger which Salies into e hole 1S in the busliiug 16. Thus the bushing 16 rotates with the hub, so the?J` the bearing surfaces are the engaging surfaces of the bushing 16 snel spindle 1G.

On its outside surface the bushing 16 les large helical passage or groove 19, which es shown niek-es a little moreftleen one como plete turn. i This lielicel groove 19 has endivells 2G et its *mo ends, suoli end Wells eX- 'tenrling Jcransversely of the groove. or sullosiantially parallel to the en'is as is cleur from Fig. '1. The space prcvifleilv by this helical groove 19, closed et its endsiby the wells 2O and on the ouisicle by the hul) 12,A constitues ilie lubricant chamber, to which?, lubricant may be suppliecl through an oilinjection opening proviclecl in the llul3`12 enel closed 'oy the removable screw-plug 21* lit its opposite ends close ,io the mvo end Walls 2O respectively, the bushing has two radial re'ierelily in the same axial lino shown in Fig'. 1, und which connect the helical groove i9 to the beeriu surfaces between he bushing and the :spied e.

oms, minimo@ iene. e com Specication of Lette@ f central ports is continuous, muy cover su lof the. hub 12 along such groove 12.

` reason of its inertia tends to mov These 20 close to the holes 22, so shut ille inerie essieuoe fro ver eigens or turion or moreno.,

Patented lilium 1921 ieee. serial No. 366,646.

@Wo holes 22 ure'connected` by slot cfeued in one of the bearing surfaces, preferably oo the inside surface of the bus ring 16. This; slot 23 is continued pest the forward hole to the front end oi' the bushing, Where ii. communicates with the end-thrust bearing, surfaces between theforivard snol of lie bushing '16 and a thrust Washer this thrust Washer is backed by a-Weslier 2% lielfl zig-einst rotation on the spindle 1G es by en inwardly eXtenflingwtong-ue fitting into'- longitudinel groove 26 in the spinclle enel provided with an ouiwaidly ken-ben finger 27 which is beni, downward one fece oa clamping nui? 28 to 'serve es el nut-lock for such nue, the 'nue 28 nes/ing; screw-threaded moun'i'ng on the *for-v1, end of thespinolle 10 to clamp che parte ro. place on the spinello;- nut' 28 is usuel put in piece before alie spider 1li is evecli sothet the central part of suoli spieler, vv

not ami close the forwaml end of to li' any change in speed 'of elle hub im; increase or decrease of s peeclj c.

one or the'other enclo elle roow o so move. This movement` oi? Y ever, is limited liy the enel" Wells; 2@ helical groove, and y when ne niovio strikes eiilier of such enel' Wells il. is inward thereby intd the'acli acont radi 22, with suiicieno pressure to 'force luie oil along che slot 23 totheolier hole 22 enel. to the end-thrust bea-ring surfaces between the bushing 1 6 encl thrust Washer 2%, the oil es coping from such other hole 22 back into *elle helical groove 19. Thus upon everyv change in speed o .l is 'orceli onto che bearing surfeces, by the inertia of the oilitself. The lubrication. .time producefl is ounai to loe very eiective, especially in automobile'tleus the speed of which is constantly changing, The eii'ectiveness of this lubrication largely dependent upon having 'the engi Wells moved oil may strike such end walls and be directed thereby into the adjacent holes.

tionary supporting spindle, and a rotatable structure'mounted ou said spindle. said rotatable structure being provided with a heli! cal passage having end walls and connected at its ends by holes at points close to such end Walls to Athe bearing surfaces between said s )indie and" rotating structure.

2. n a bearing', the eonibinatitm ot' a stm tionary supper ing spindle, and a rota-table structure mounted on said spindle, said rotatable structure being provided with a helical passage having end walls and connected al its ends by holes at points close to such end walls lo the bearing surfaces between said spindle and rotating structure, one ot said bearing surfaces being provided with :i slot connecting said holes.

3. In a bearing. the. combination of a stationary supporting spindle, and a rotatable structuregniounted on said s indle, said rotatable structure being provi ed with a helical passage connected at its ends by holes to the bearing surfaces between said spindle and rotating structure, one of said bearing surfaces being provided with a slot connecting said holes.

In a bearing, the combination of a stationary supporting spindle, a rotating structure having a hub rotatably mounted on said spindle and' subject to end thrust, and an end-thrust member for taking the end thrust from said hub, said hub having within it a helical passage connected by holes at its ends to the bearing surfaces between the hub and spindle, said latter bearing surfzures-leading to the end-thrust bearing surfaces.

5. In a bearing, the combination of a stationary supporting spindle, a rotating structure having a hub rotatably mounted on said spindle and subject to end thrust, and an end-thrust member for taking the end thrust from said hub, said hub having Within it a helical passage connected by holes at its ends yto the bearing surfaces between the hub and spindle, one of said bearing surfaces between'the spindle and hub` being provided with a slot connecting said holes together and to the end-thrust bearing surfaces.

6. In a bearing, the combination of a stationary supporting spindle, a rotating structure having a hub rotatably mounted on said spindle and subject to end thrust, and an end-thrust member for taking the end thrust from said hub, said hub having Within it a helical passage connected by holes at its ends to the bearing surfaces between the hub and spindle, one of said bearing surfaces between the spindle and hub bein provided with a slot connecting one of sai holes to the endthrust bearing surfaces.

In `)vit-ness whereof, I have hereunto set my hand at Indianapolis, Indiana, this thir teenth day of March, A. I). one thousand nine hundred and twent (isoles w. noY'r. 

